0: No fault
1: Inverter unit U phase protection (OUt1)
2: Inverter unit V phase protection (OUt2)
3: Inverter unit W phase protection (OUt3)
4: Overcurrent during acceleration (OC1)
5: Overcurrent during deceleration (OC2)
6: Overcurrent during constant speed running
(OC3)
7: Overvoltage during acceleration (OV1)
8: Overvoltage during deceleration (OV2)
9: Overvoltage during constant speed running
(OV3)
10: Bus undervoltage (UV)
11: Motor overload (OL1)